package tulingxueyuan117;

/**
 * Author: Zhang Dongwei
 * Date: 2022/11/3 9:52
 */
public class TreeNode {
    int val;
    TreeNode left;
    TreeNode right;
    TreeNode(){}
    TreeNode(int val){this.val=val; }
    TreeNode(int val, TreeNode left, TreeNode right){
        this.val = val;
        this.left = left;
        this.right = right;
    }
}
